mirror of https://github.com/JakubMelka/PDF4QT.git
Editor plugin: Edit text
This commit is contained in:
parent
d83689cddb
commit
9222a60039
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@ -151,7 +151,7 @@ void EditorPlugin::setWidget(pdf::PDFWidget* widget)
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connect(&m_scene, &pdf::PDFPageContentScene::selectionChanged, this, &EditorPlugin::onSceneSelectionChanged);
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connect(&m_scene, &pdf::PDFPageContentScene::editElementRequest, this, &EditorPlugin::onSceneEditElement);
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connect(clearAction, &QAction::triggered, &m_scene, &pdf::PDFPageContentScene::clear);
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connect(activateAction, &QAction::triggered, this, &EditorPlugin::setActive);
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connect(activateAction, &QAction::triggered, this, &EditorPlugin::onSetActive);
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connect(m_widget->getDrawWidgetProxy(), &pdf::PDFDrawWidgetProxy::drawSpaceChanged, this, &EditorPlugin::onDrawSpaceChanged);
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updateActions();
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@ -200,7 +200,7 @@ bool EditorPlugin::save()
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const pdf::PDFPage* page = m_document->getCatalog()->getPage(pageIndex);
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const pdf::PDFEditedPageContent& editedPageContent = m_editedPageContent.at(pageIndex);
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pdf::PDFPageContentEditorContentStreamBuilder contentStreamBuilder;
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pdf::PDFPageContentEditorContentStreamBuilder contentStreamBuilder(m_document);
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contentStreamBuilder.setFontDictionary(editedPageContent.getFontDictionary());
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auto it = elementsByPage.find(pageIndex);
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@ -477,6 +477,17 @@ void EditorPlugin::setActive(bool active)
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}
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}
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void EditorPlugin::onSetActive(bool active)
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{
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if (!active && !save())
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{
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updateActions();
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return;
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}
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setActive(active);
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}
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void EditorPlugin::updateActions()
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{
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m_actions[Activate]->setEnabled(m_document);
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@ -103,6 +103,7 @@ private:
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};
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void setActive(bool active);
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void onSetActive(bool active);
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void updateActions();
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void updateGraphics();
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@ -778,7 +778,8 @@ void PDFEditedPageContentElementText::setItemsAsText(const QString& newItemsAsTe
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m_itemsAsText = newItemsAsText;
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}
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PDFPageContentEditorContentStreamBuilder::PDFPageContentEditorContentStreamBuilder()
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PDFPageContentEditorContentStreamBuilder::PDFPageContentEditorContentStreamBuilder(PDFDocument* document) :
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m_document(document)
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{
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}
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@ -1147,231 +1148,266 @@ void PDFPageContentEditorContentStreamBuilder::writeText(QTextStream& stream, co
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{
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stream << "q BT" << Qt::endl;
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QXmlStreamReader reader(text);
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m_textFont = m_currentState.getTextFont();
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QString xml = QString("<?xml version=\"1.0\" encoding=\"UTF-8\"?><doc>%1</doc>").arg(text);
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auto isCommand = [&reader](const char* tag) -> bool
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{
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QString tagString = reader.name().toString();
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QXmlStreamAttributes attributes = reader.attributes();
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return tagString == "tr" && attributes.size() == 1 && attributes.hasAttribute("v");
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};
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QXmlStreamReader reader(xml);
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m_textFont = m_currentState.getTextFont();
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while (!reader.atEnd() && !reader.hasError())
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{
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reader.readNext();
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if (reader.isStartElement())
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switch (reader.tokenType())
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{
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QXmlStreamAttributes attributes = reader.attributes();
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case QXmlStreamReader::NoToken:
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break;
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if (isCommand("tr"))
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{
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const QXmlStreamAttribute& attribute = attributes.front();
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bool ok = false;
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const int textRenderingMode = attribute.value().toInt(&ok);
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if (!ok || textRenderingMode < 0 || textRenderingMode > 7)
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{
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addError(PDFTranslationContext::tr("Invalid rendering mode '%1'. Valid values are 0-7.").arg(textRenderingMode));
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}
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else
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{
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stream << textRenderingMode << " Tr" << Qt::endl;
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}
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}
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else if (isCommand("ts"))
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{
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const QXmlStreamAttribute& attribute = attributes.front();
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bool ok = false;
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const double textRise = attribute.value().toDouble(&ok);
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case QXmlStreamReader::Invalid:
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addError(PDFTranslationContext::tr("Invalid XML text."));
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break;
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if (!ok)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attribute.value().toString()));
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}
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else
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{
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stream << textRise << " Ts" << Qt::endl;
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}
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}
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else if (isCommand("tc"))
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{
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const QXmlStreamAttribute& attribute = attributes.front();
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bool ok = false;
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const double textCharacterSpacing = attribute.value().toDouble(&ok);
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case QXmlStreamReader::StartDocument:
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case QXmlStreamReader::EndDocument:
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case QXmlStreamReader::EndElement:
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case QXmlStreamReader::Comment:
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case QXmlStreamReader::DTD:
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case QXmlStreamReader::ProcessingInstruction:
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case QXmlStreamReader::EntityReference:
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break;
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if (!ok)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attribute.value().toString()));
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}
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else
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{
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stream << textCharacterSpacing << " Tc" << Qt::endl;
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}
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}
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else if (isCommand("tw"))
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{
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const QXmlStreamAttribute& attribute = attributes.front();
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bool ok = false;
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const double textWordSpacing = attribute.value().toDouble(&ok);
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case QXmlStreamReader::StartElement:
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writeTextCommand(stream, reader);
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break;
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if (!ok)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attribute.value().toString()));
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}
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else
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{
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stream << textWordSpacing << " Tw" << Qt::endl;
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}
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}
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else if (isCommand("tl"))
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case QXmlStreamReader::Characters:
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{
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const QXmlStreamAttribute& attribute = attributes.front();
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bool ok = false;
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const double textLeading = attribute.value().toDouble(&ok);
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QString characters = reader.text().toString();
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if (!ok)
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if (m_textFont)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attribute.value().toString()));
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}
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else
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{
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stream << textLeading << " TL" << Qt::endl;
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}
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}
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else if (isCommand("tz"))
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{
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const QXmlStreamAttribute& attribute = attributes.front();
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bool ok = false;
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const PDFReal textScaling = attribute.value().toDouble(&ok);
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PDFEncodedText encodedText = m_textFont->encodeText(characters);
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if (!ok)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attribute.value().toString()));
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}
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else
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{
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stream << textScaling << " Tz" << Qt::endl;
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}
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}
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else if (reader.name().toString() == "tf")
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{
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if (attributes.hasAttribute("font") && attributes.hasAttribute("size"))
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{
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bool ok = false;
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QByteArray v1 = attributes.value("font").toString().toLatin1();
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PDFReal v2 = attributes.value("size").toDouble(&ok);
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if (!ok)
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if (!encodedText.encodedText.isEmpty())
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attributes.value("size").toString()));
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stream << "<" << encodedText.encodedText.toHex() << "> Tj" << Qt::endl;
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}
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else
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if (!encodedText.isValid)
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{
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v1 = selectFont(v1);
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stream << "/" << v1 << " " << v2 << " Tf" << Qt::endl;
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addError(PDFTranslationContext::tr("Error during converting text to font encoding. Some characters were not converted: '%1'.").arg(encodedText.errorString));
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}
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}
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else
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{
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addError(PDFTranslationContext::tr("Text font command requires two attributes - font and size."));
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addError(PDFTranslationContext::tr("Text font not defined!"));
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}
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break;
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}
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else if (reader.name().toString() == "tpos")
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{
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if (attributes.hasAttribute("x") && attributes.hasAttribute("y"))
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{
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bool ok1 = false;
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bool ok2 = false;
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PDFReal v1 = attributes.value("x").toDouble(&ok1);
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PDFReal v2 = attributes.value("y").toDouble(&ok2);
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if (!ok1)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attributes.value("x").toString()));
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}
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else if (!ok2)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attributes.value("y").toString()));
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}
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else
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{
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stream << v1 << " " << v2 << " Td" << Qt::endl;
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}
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}
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else
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{
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addError(PDFTranslationContext::tr("Text translation command requires two attributes - x and y."));
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}
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}
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else if (reader.name().toString() == "tmatrix")
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{
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if (attributes.hasAttribute("m11") && attributes.hasAttribute("m12") &&
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attributes.hasAttribute("m21") && attributes.hasAttribute("m22") &&
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attributes.hasAttribute("x") && attributes.hasAttribute("y"))
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{
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bool ok1 = false;
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bool ok2 = false;
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bool ok3 = false;
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bool ok4 = false;
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bool ok5 = false;
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bool ok6 = false;
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PDFReal m11 = attributes.value("m11").toDouble(&ok1);
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PDFReal m12 = attributes.value("m12").toDouble(&ok2);
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PDFReal m21 = attributes.value("m21").toDouble(&ok3);
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PDFReal m22 = attributes.value("m22").toDouble(&ok4);
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PDFReal x = attributes.value("x").toDouble(&ok5);
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PDFReal y = attributes.value("y").toDouble(&ok6);
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if (!ok1 || !ok2 || !ok3 || !ok4 || !ok5 | !ok6)
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{
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addError(PDFTranslationContext::tr("Invalid text matrix parameters."));
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}
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else
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{
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stream << m11 << " " << m12 << " " << m21 << " " << m22 << " " << x << " " << y << " Tm" << Qt::endl;
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}
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}
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else
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{
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addError(PDFTranslationContext::tr("Set text matrix command requires six elements - m11, m12, m21, m22, x, y."));
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}
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}
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else
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{
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addError(PDFTranslationContext::tr("Invalid command '%1'.").arg(reader.name().toString()));
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}
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}
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if (reader.isCharacters())
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{
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QString characters = reader.text().toString();
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if (m_textFont)
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{
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PDFEncodedText encodedText = m_textFont->encodeText(characters);
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if (!encodedText.encodedText.isEmpty())
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{
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stream << "<" << encodedText.encodedText.toHex() << "> Tj" << Qt::endl;
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}
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if (!encodedText.isValid)
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{
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addError(PDFTranslationContext::tr("Error during converting text to font encoding. Some characters were not converted: '%1'.").arg(encodedText.errorString));
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}
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}
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else
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{
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addError(PDFTranslationContext::tr("Text font not defined!"));
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}
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default:
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Q_ASSERT(false);
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break;
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}
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}
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stream << "ET Q" << Qt::endl;
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}
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void PDFPageContentEditorContentStreamBuilder::writeTextCommand(QTextStream& stream, const QXmlStreamReader& reader)
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{
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QXmlStreamAttributes attributes = reader.attributes();
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auto isCommand = [&reader](const char* tag) -> bool
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{
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QString tagString = reader.name().toString();
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QXmlStreamAttributes attributes = reader.attributes();
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return tagString == QLatin1String(tag) && attributes.size() == 1 && attributes.hasAttribute("v");
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};
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if (reader.name().toString() == "doc")
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{
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return;
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}
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if (isCommand("tr"))
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{
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const QXmlStreamAttribute& attribute = attributes.front();
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bool ok = false;
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const int textRenderingMode = attribute.value().toInt(&ok);
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if (!ok || textRenderingMode < 0 || textRenderingMode > 7)
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{
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addError(PDFTranslationContext::tr("Invalid rendering mode '%1'. Valid values are 0-7.").arg(textRenderingMode));
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}
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else
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{
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stream << textRenderingMode << " Tr" << Qt::endl;
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}
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}
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else if (isCommand("ts"))
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{
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const QXmlStreamAttribute& attribute = attributes.front();
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bool ok = false;
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const double textRise = attribute.value().toDouble(&ok);
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if (!ok)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attribute.value().toString()));
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}
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else
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{
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stream << textRise << " Ts" << Qt::endl;
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}
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}
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else if (isCommand("tc"))
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{
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const QXmlStreamAttribute& attribute = attributes.front();
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bool ok = false;
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const double textCharacterSpacing = attribute.value().toDouble(&ok);
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if (!ok)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attribute.value().toString()));
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}
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else
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{
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stream << textCharacterSpacing << " Tc" << Qt::endl;
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}
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}
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else if (isCommand("tw"))
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{
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const QXmlStreamAttribute& attribute = attributes.front();
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bool ok = false;
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const double textWordSpacing = attribute.value().toDouble(&ok);
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if (!ok)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attribute.value().toString()));
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}
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else
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{
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stream << textWordSpacing << " Tw" << Qt::endl;
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}
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}
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else if (isCommand("tl"))
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{
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const QXmlStreamAttribute& attribute = attributes.front();
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bool ok = false;
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const double textLeading = attribute.value().toDouble(&ok);
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if (!ok)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attribute.value().toString()));
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}
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else
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{
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stream << textLeading << " TL" << Qt::endl;
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}
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}
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else if (isCommand("tz"))
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{
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const QXmlStreamAttribute& attribute = attributes.front();
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bool ok = false;
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const PDFReal textScaling = attribute.value().toDouble(&ok);
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if (!ok)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attribute.value().toString()));
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}
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else
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{
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stream << textScaling << " Tz" << Qt::endl;
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}
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}
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else if (reader.name().toString() == "tf")
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{
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if (attributes.hasAttribute("font") && attributes.hasAttribute("size"))
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{
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bool ok = false;
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QByteArray v1 = attributes.value("font").toString().toLatin1();
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PDFReal v2 = attributes.value("size").toDouble(&ok);
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if (!ok)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attributes.value("size").toString()));
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}
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else
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{
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v1 = selectFont(v1);
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stream << "/" << v1 << " " << v2 << " Tf" << Qt::endl;
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}
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}
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else
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{
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addError(PDFTranslationContext::tr("Text font command requires two attributes - font and size."));
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}
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}
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else if (reader.name().toString() == "tpos")
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{
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if (attributes.hasAttribute("x") && attributes.hasAttribute("y"))
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{
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bool ok1 = false;
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bool ok2 = false;
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PDFReal v1 = attributes.value("x").toDouble(&ok1);
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PDFReal v2 = attributes.value("y").toDouble(&ok2);
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if (!ok1)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attributes.value("x").toString()));
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}
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else if (!ok2)
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{
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addError(PDFTranslationContext::tr("Cannot convert text '%1' to number.").arg(attributes.value("y").toString()));
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}
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else
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{
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stream << v1 << " " << v2 << " Td" << Qt::endl;
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}
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}
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else
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{
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addError(PDFTranslationContext::tr("Text translation command requires two attributes - x and y."));
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}
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}
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else if (reader.name().toString() == "tmatrix")
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{
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if (attributes.hasAttribute("m11") && attributes.hasAttribute("m12") &&
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attributes.hasAttribute("m21") && attributes.hasAttribute("m22") &&
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attributes.hasAttribute("x") && attributes.hasAttribute("y"))
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{
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bool ok1 = false;
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bool ok2 = false;
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bool ok3 = false;
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bool ok4 = false;
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bool ok5 = false;
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bool ok6 = false;
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PDFReal m11 = attributes.value("m11").toDouble(&ok1);
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PDFReal m12 = attributes.value("m12").toDouble(&ok2);
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PDFReal m21 = attributes.value("m21").toDouble(&ok3);
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PDFReal m22 = attributes.value("m22").toDouble(&ok4);
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PDFReal x = attributes.value("x").toDouble(&ok5);
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PDFReal y = attributes.value("y").toDouble(&ok6);
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if (!ok1 || !ok2 || !ok3 || !ok4 || !ok5 | !ok6)
|
||||
{
|
||||
addError(PDFTranslationContext::tr("Invalid text matrix parameters."));
|
||||
}
|
||||
|
||||
else
|
||||
{
|
||||
stream << m11 << " " << m12 << " " << m21 << " " << m22 << " " << x << " " << y << " Tm" << Qt::endl;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
addError(PDFTranslationContext::tr("Set text matrix command requires six elements - m11, m12, m21, m22, x, y."));
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
addError(PDFTranslationContext::tr("Invalid command '%1'.").arg(reader.name().toString()));
|
||||
}
|
||||
}
|
||||
|
||||
void PDFPageContentEditorContentStreamBuilder::writeImage(QTextStream& stream, const QImage& image)
|
||||
{
|
||||
QByteArray key;
|
||||
|
|
|
@ -22,6 +22,8 @@
|
|||
|
||||
#include <memory>
|
||||
|
||||
class QXmlStreamReader;
|
||||
|
||||
namespace pdf
|
||||
{
|
||||
|
||||
|
@ -211,7 +213,7 @@ private:
|
|||
class PDF4QTLIBCORESHARED_EXPORT PDFPageContentEditorContentStreamBuilder
|
||||
{
|
||||
public:
|
||||
PDFPageContentEditorContentStreamBuilder();
|
||||
PDFPageContentEditorContentStreamBuilder(PDFDocument* document);
|
||||
|
||||
void writeStateDifference(QTextStream& stream, const PDFPageContentProcessorState& state);
|
||||
void writeElement(const PDFEditedPageContentElement* element);
|
||||
|
@ -232,7 +234,9 @@ private:
|
|||
const QPainterPath& path,
|
||||
bool isStroking,
|
||||
bool isFilling);
|
||||
|
||||
void writeText(QTextStream& stream, const QString& text);
|
||||
void writeTextCommand(QTextStream& stream, const QXmlStreamReader& reader);
|
||||
|
||||
void writeImage(QTextStream& stream, const QImage& image);
|
||||
|
||||
|
|
Loading…
Reference in New Issue